S3 Smart Sun Sensor
Leonardo SpA (Space Division)
The Leonardo S3 (Smart Sun Sensor) is a two-axis solar sensor based on an APS (Active Pixel Sensor) CMOS detector, combining the functions of fine and coarse sun sensors in a single compact unit. Field of view is 128×128 degrees (resizable), with less than 0.02-degree accuracy (2-sigma) and 0.005-degree resolution. Update rate is 10 Hz. […]
Typed specifications49 values
Discloses 6 of 8 fields engineers filter by in this category (category median 4).
- Accuracy
- 0.02 ° max · datasheet p.2 0.02 ° max · <0.02 deg (2 sigma)
- Mass
- 330 g max · datasheet p.2 330 g max · <330 grams
- Envelope (L×W×H)
- 112 x 12 x 43 mm datasheet p.2
- Update rate
- 10 Hz datasheet p.2 10 Hz refreshing rate
- Output type
- digital datasheet p.2 digital sun co-ordinates + house keeping over RS-422
- Field of view
- 128 ° datasheet p.2 128 ° 128 x 128 deg FOV (resizable)
- Supply voltage
- 5 V nom. · +5V +/-10% pre regulated · datasheet p.2 5 V pre regulated | 24–50 V 24 to 50V unregulated power bus
- Power consumption
- 1 W 50V unregulated bus · datasheet p.2 0.7 W pre-regulated voltage | 1 W max · <1W for 50V unregulated bus | 0.7 W max · <700mW for pre-regulated voltage | 1 W max · 50V unregulated bus +1
- Data interface
- RS-422 datasheet p.2 RS-422 STD-RS-422 with DS48 or DS16 serial output protocol
- Operating temperature
- -25–60 °C operational temperature · datasheet p.2
- Radiation tolerance (TID)
- 100 krad components · datasheet p.2 300 krad components (opt.) | 300 krad components, optional | 1 000 krad detector | 1 000 krad detector up to 1 Mrad +1
- Design lifetime
- 15 years in GEO · datasheet p.2 15 years min · in GEO | 15 years min · lifetime in GEO > 15 years
- Export status
- ITAR-free datasheet p.1 ITAR-free ITAR free status
- Sensor class
- digital two-axis datasheet p.1 digital two-axis two axes solar sensor based on APS detector
- Axes
- 2 datasheet p.1
- Survival temperature
- -40–75 °C storage temperature · datasheet p.2
- Random vibration
- 26.8 g RMS datasheet p.2 26.8 g RMS random
- Flight heritage
- S3 prototype flying since Feb. 2008 on the ESA Coarse Pointing Device (CPD) of the Columbus module (ISS); Flight Models flying since beginning of 2009 on ESA GOCE and on SICRAL-1B datasheet p.2
- Satellite class
- GEO optimised for the GEO Telecommunication spacecrafts · datasheet p.1 large >500 kg
- Quasi-static load
- 26.8 g Random · datasheet p.2 20 g Sine
- Shock qualification
- 2 000 g from 3 to 10kHz · datasheet p.2 2 000 g shock from 3 to 10kHz
- Sensing element
- CMOS/CCD imager Active Pixel Sensor (APS) detector · datasheet p.1
- Resolution
- 0.005 ° max · <0.005 deg · datasheet p.2
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier16 lines, in the manufacturer's own wording
- Detector
- APS CMOS
- FOV
- 128 x 128 deg (resizable)
- Accuracy (2-sigma)
- <0.02 deg
- Resolution
- <0.005 deg
- Update rate
- 10 Hz
- Altitude range
- 3,000-40,000 km (interplanetary up to 50 AU)
- Spinning rate
- Up to 100 rpm
- Dimensions
- 112 x 12 x 43 mm
- Mass
- <330 g
- Supply (pre-regulated)
- +5 V, <700 mW
- Supply (unregulated)
- 24-50V, <1 W
- Interface
- RS-422 (DS48 or DS16 serial)
- Radiation
- 100 kRad (300 kRad optional); detector up to 1 Mrad; SEU tolerant, latch-up free
- Operating temperature
- -25 to +60 deg C
- Design lifetime
- >15 years GEO
- TRL
- 9 (ISS Columbus, Galileo, Lisa Pathfinder)
About
The Leonardo S3 (Smart Sun Sensor) is a two-axis solar sensor based on an APS (Active Pixel Sensor) CMOS detector, combining the functions of fine and coarse sun sensors in a single compact unit. Field of view is 128×128 degrees (resizable), with less than 0.02-degree accuracy (2-sigma) and 0.005-degree resolution. Update rate is 10 Hz. Designed for Earth observation satellites, GEO telecom spacecraft, interplanetary missions up to 50 AU, and spinning spacecraft up to 100 rpm. Power consumption is less than 700 mW from 5V pre-regulated supply or less than 1W from 24-50V unregulated. Mass is 330g in 112x12x43mm package. ITAR-free. Flight heritage includes ISS Columbus module (since Feb 2008), ESA GOCE, SICRAL-1B, and Lisa Pathfinder.
Documentation
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